
# Online Python - IDE, Editor, Compiler, Interpreter
from tkinter import*
print ('введите начальную координаты x:')
x=int(input())
print ('введите начальную координаты y:')
y=int(input())
print ('введите начальную координаты n:')
n=int(input())
 
 coords=[0,0,10,0,10,10,20,10,20,20,0,20]
 
 if n== 0 and x>=0 and x<=500 and y>=0 and Y<=500:
     pass
 else:
     if n > 0 and 0*n+x>=0 and 0*n+y>=0 and 20*n+x<=500 and 20*n+y<=500
      pass
 else:
     if n < 0 and 20*n+x>=0 and  20*n+y>=0 and 0*n+x<=500 and 0*n+y<=500
     pass
 else:  
     print('размер фигуры превышает максимальный размер поля')
     exit()
     
     root = tk()
     root.title("ИТ марафон")
     root.geometry("500x500")
     
     canvas= canvas(bg="white", width=500, height=500)
     canvas.pack (anchor=CENTER, expand=1)
     
     canvas.create_polygon (coords [0] *n+x, coords[1] *n+y,
                           (coords [2] *n+x, coords[3] *n+y,
                           (coords [4] *n+x, coords[5] *n+y,
                           (coords [6] *n+x, coords[7] *n+y,
                           (coords [8] *n+x, coords[9] *n+y,
                           (coords [10] *n+x, coords[11] *n+y)
    root.mainloop()